← 返回 JSSC 论文列表JSSC 2008第12期Analog Circuits0.18μmOp-Amp
An Over-60 dB True Rail-to-Rail Performance Using Correlated Level Shifting and
提出相关电平移位(CLS)技术，实现轨到轨性能并减少运算放大器增益误差。
0.18μm CMOS, 20MHz, 12-bit, 10.5 ENOB, 0.9V供电
相关电平移位轨到轨运算放大器ADCCMOS
▸引入相关电平移位(CLS)技术
▸减少运算放大器有限增益引起的误差
▸在保持kT/C噪声不变的同时提升速度
Abstract
Gregoire , Member , IEEE, and Un-Ku Moon , Senior Member , IEEE
Abstract—Correlated level shifting (CLS) is introduced as a new
switched-capacitor technique to provide true rail-to-rail perfor-
mance while reducing errors from finite opamp gain. There is neg-
ligible kT/C noise increase and in many cases a speed advantage
compared to using a high gain opamp. The gain enhancement is
quantified with formulas and the general technique is compared
to correlated double sampling (CDS). Results are prese